Vault-light construction.



No. 835,584. PATENTED NOV; 13, 1906.

E. M. JOHNSON.

VAULT LIGHT CONSTRUCTION.

APPLICATION FILED JUNE 15.1905.

2 SHEETSSHEET 1.

rn: NORRIS PETERS co., wnsamonm, n c,

No. 835,534. PATENTED NOV. 13, 1906. B. M. JOHNSON.

VAULT LIGHT CONSTRUCTION.

APPLICATION FILED JUNE 15, 1905.

2 SHEETS-SHEET 2.

2 a. cm. 9. w 7 WW 7 77K a a central lengthwise section of one UNITED STATES PATENT oEEIoE.

Specification of Letters Patent.

Patented Nov. 13, 1906.

Application filed June 15, 1905. Serial No. 265,412.

To all whom it may concern:

Be it known that I, EUGENE MALooLM J'OHNSON, a citizen of the United States, residing at Allston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Vault-Light Construction, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to a non-slipping water-tight vault-light construction; and the objects of my invention are to anchor together a metal vault-light-supporting frame, a vault-light, and plastic material in such wise as to produce a strong, durable, and water-tight construction. These objects are preferably obtained by means of the construction illustrated in the accompanying drawings, in which Figure 1 is a top plan view of my new vault-light construction, a part being broken away for greater clearness. Fig. 2 is a sectional detail elevation of the construction shown in Fig. l at line 2 2 thereof. Fig. 3 is form of light such as shown in Figs. 1 and 2 at line 3 3 of Fig. 1. Fig. 4 is a transverse section of the light at line 4 4 of Fig. 3. Fig. 5 is a central sectional view of a chambered vault-light provided at its upper end with non-slipping material and a cement filling between the light and said material. Fig. 6 is a side elevation of a modification in which a slightlydifl'erent form of light is used. Fig. 7 is a lengthwise vertical section at line 7 7 of Fig. 6, which is a side elevation. Fig. 8 is a top plan view of the light shown in Fig. 7. Fig. 9 is a transverse section of another form of light. Fig. 10 shows a modification in which a cast plate having holes through it for reception of plastic material and without tongues is combined with a light by means of plastic composition, the cement filling between the non-slipping material and light being omitted.

In the drawings, 1 is a sheet-metal baseplate having holes 2 through it and integral outwardly-extending tongues 3 adjacent to the holes. Preferably the plate is set with the tongues extending upwardly, so astopresent a smooth metal surface underneath. Consequently the holes 4, which receive the glass lights or prisms 5, are formed with flat margins 6. The lower ends of the prisms are set in holes 4. The prisms in accordance with my invention have a lower shoulder 7,

which rests on the margins of holes 4, and an upper shoulder 8, on which non-slipping material 9such as lead, for eXampleis bent to anchor it in place. The upper surface of the non-slipping material is flush with the tops of the prisms and is then exposed with the tops of the prisms, which are very slippery to foottread. Preferably fine compact cement 10 is set in between the opposed surfaces of the non-slipping material and of the prisms as a precaution against leaking; but the nonslipping material which entirely surrounds the upper ends of the prisms may be pressed directly against the prisms, if preferred. The prisms may have other shoulders than 7 and 8, if desired, the more the better. All the prisms shown are of well-known construction; but I am the first to provide a prism with attached non-slipping material.

When the prisms are in place in the plate, concrete, cement, granolithic, or any suitable plastic compound is applied to the upper surface of the plate and passing through holes 2 becomes anchored to the plate. It also fills in the spaces between. the prisms on the upper side of the plate and overlaps the lower shoulders 7, and preferably all the shoulders of the prisms, so that they and the plate are tightly bound together by the plastic material that rises to the tops of the prisms and with them form a pavement on the tread-surface of which the non-slipping material also appears. The tongues 3 serve to more firmly hold the plastic material in place, but may be dispensed. with, if preferred.

By this construction I receive a relative light-weight, durable, water-tight, and nonslipping vault-light. The non-slipping material is held in place by the upper shoulders of the prisms and will not become dislodged.

In Fi s. 5, 6, 7, 8, 9, and 10 I illustrate modifications of my invention wherein forms of well-known prisms or lights differing from the form shown in the other figures are provided with non-slipping material attached to the upper shoulders. In Fig. 10 the cement between the lead and glass is omitted and a thick cast plate without tongues is used in lieu of the sheet-metal plate shown in the other figures.

What I claim is 1. As a new article of manufacture, a vault-light having a shoulder near its upper end and combined with non-slippin metal shaped to fit and anchored on said shoulder and extending upwardly to the top of the light.

2. As a new article of manufacture, a vault-light having a shoulder near its upper end and combined with-non-slipping material anchored on said shoulder and. extending upwardly to the top of the light; and a filling between the opposed surfaces of the non-slipping material and light and above the shoulc er.

3. The combination with a plate having holes through it for engagement with plastic material and holes through it for reception of the lights, of lights set in the light-receiving holes and provided with lower shoulders which rest on the margins of the light-receiving holes and with upper shoulders; and

' plastic. material set in the spaces between the lights and anchored in the holes through the plate, between the lights and on the upper shoulders; and non-slipping material exposed at the upper surface of the plastic material, between the lights.

4. The combination with a plate having holes through it for engagement with plastic material and holes through it for reception of the lights, of lights set in the light-receiving holes and provided with lower shoulders which rest on the margins of the light-receiving holes and with upper shoulders; and plastic material set in the spaces between the lights and anchored in the holes through the plate, between the lights, and on the upper shoulders and non-slipping material anchored on said upper shoulders and extending upwardly to the tops of the lights, the upper surfaces of the plastic material, lights and n0n-slipping material being flush.

5. The combination with a sheet-metal plate having holes through it forreception of plastic material, and thereto adjacent, integral upwardly-extending tongues and having other holes with flat margins of lights set in the latter holes; the lights having lower shoulders which rest on said margins and other shoulders near the upper end of the lights; and plastic material set in spaces between said lights, overlapping said lower shoulders and anchored in the holes for receiving the plastic material and on said tongues and non-slipping material anchored on said upper shoulders.

In testimony whereof I aflix my signature in presence of two witnesses.

EUGENE MALCOLM JOHNSON.

Witnesses:

EDWARD S. BEACH, E. A. ALLEN. 

